//----------------------------------------------------------------------------//
void OpenGL3Texture::loadFromMemory(const void* buffer, const Sizef& buffer_size,
PixelFormat pixel_format)
{
if (!isPixelFormatSupported(pixel_format))
CEGUI_THROW(InvalidRequestException(
"Data was supplied in an unsupported pixel format."));
initInternalPixelFormatFields(pixel_format);
setTextureSize_impl(buffer_size);
// store size of original data we are loading
d_dataSize = buffer_size;
updateCachedScaleValues();
// save old texture binding
GLuint old_tex;
glGetIntegerv(GL_TEXTURE_BINDING_2D, reinterpret_cast<GLint*>(&old_tex));
// do the real work of getting the data into the texture
glBindTexture(GL_TEXTURE_2D, d_ogltexture);
if (d_isCompressed)
loadCompressedTextureBuffer(buffer_size, buffer);
else
loadUncompressedTextureBuffer(buffer_size, buffer);
// restore previous texture binding.
glBindTexture(GL_TEXTURE_2D, old_tex);
}
//----------------------------------------------------------------------------//
void OpenGLESTexture::blitFromMemory(const void* sourceData, const Rectf& area)
{
// save old texture binding
GLuint old_tex;
glGetIntegerv(GL_TEXTURE_BINDING_2D, reinterpret_cast<GLint*>(&old_tex));
// do the real work of getting the data into the texture
glBindTexture(GL_TEXTURE_2D, d_ogltexture);
if (d_isCompressed)
loadCompressedTextureBuffer(area, sourceData);
else
loadUncompressedTextureBuffer(area, sourceData);
// restore previous texture binding.
glBindTexture(GL_TEXTURE_2D, old_tex);
}